Demountable rim for vehicle-tires.



R. L. MORGAN.

DEMUUNTABLE RIM FOR VEHICLE TIRES.

APPLlcAloN F|LED1uN1:3.1916.

11,299.205.' Patented Apr. l, 1919.

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UNITED sTATEs PATENT l RALPH L. MORGAN, OF WORCESTER, MASSACHUSETTS.

DEMOUNTABLE RIM FOR VEHICLE-TIRES.

Specification of Letters Patent.

Patented Apr. 1, 1919.

Application led June 3, 1916. Serial No. 101,611.

' produce a demountable rim for vehicle tires mountable rim.

witha solid cushion l complicated. These by whlch the construction of thisclasspof tires is simplified by the reduction of its detachable parts, thereby rendering its application to and removal from a wheel rim less objects, among others, I accomplish by the construction and ar rangement of parts as hereinafter described, reference being had to the accompanying drawings, in Whichy Figure 1 represents a side view of a vehicle wheel fitted with my improved de- Fig. 2 a transverse section on the plane of the bro'ken line 2-2, l, showing the metal felly-rim and demountable tire rim,

tire carried thereby.

Fig. 3 is a transverse sectional View showing thesame parts as illus-trated in Fig. 2, but with` the section on the plane of the broken line 3-3, Fig. 1.

Fig. 4 is an enlarged side view of a portion of the rim showing the method of securing the attaching bolts thereto.

Fig. 5 is a transverse sectional View of a p ortion of the folly-rim, the demountablerim having been removed.

Similar reference characters refer tosimilar parts throughout the different views.

eferring to the accompanying drawings,

1, Fig-1, is a side view of a vehicle Awheel having radial spokes 3 in the usual manner of constructing wooden vehicle wheels. Supported upon the felly -2 is a felly-rim 4 made of metal and having its outer surface 5 beveled to form a's'eat for an annular demountable tire rim 6 having its interior surface beveled to fit thebeveled periphery of the telly-'rim 4. The demountable rim 6 is suitably constructed to support the type oftire desired, consisting in the present instance of a solid rubber cushion tire -8 held between anges 7 7, at opposite edges of 'thedemountable rim.

cesses 14 formed in 4. The felly-rim 4 is provided with withdrawing the rim felly 2 mounted upon the ends'of,`

from turning in the recesses The tire 8, iny the present instance is cemented by some suitable attaching material '9 to the outer surface of the demountable rim and is retained between the flanges 7, 7 Passing transversely through the demountable rim 6 are holes l0 to receive the bolts 11 which are screw threaded at one end and provided with nuts 12. The opposite ends of the bolts 11 are provided with heads `13 extending upon one side of the bolts and overlapping the edge of the folly-.rim 4, to which it is attached by screws 15. The rotation of the head 13 about the screw 15 is prevented` by inserting the heads 13 in rethe edge of the felly-rim grooves 16, Fig. 5, through which Athe boltsll extend and thereby hold the tire rim `from ro` tation upon the felly-rim.

The demounta'ble rim `6 may be quickly removed by withdrawing the nuts 12 and from the bolts 11. To replace the 'demountable rim 6 it is turned until the holes 10 are brought into registration with the loolts 11, when the rim 6 is pushed laterally upon the bolts 11 which have been held in position by the screws and the engagement of their -heads 13 with the recesses 14 formed-in the edge of the felly-rim. The nuts 12 are then applied to the bolts 11 and screwed thereon until the beveled surface of the tire rim 6 is seated firmly upon the Ilbeveled periphery 5 of the felly rim 4. The bolts 11 arelong enough to allow the nuts 12 to be caught thereon by hand when the demountable rim 6 has been placed in position. successively and gr dually brought against the edge of the tire rim 6, causing the latter to be forced uniformly against the beveled surface 5 of the felly-rim.

The nuts 12 are therefore the only pieces of the entire structure which require to be detached in order to change the demounta'ble rim land as'the bolts 11 are equally spaced about the rimhalf a dozen nuts are usually suiiicient to securely hold the demountable rim in place. In case the screw threads of the boltsll become defaced the bolts may be readily removed by withdrawing the screws 15.

The bolts 11 are held from rotating axially by means of the unilateral heads 13 held 14 of the felly rim. They are further held in a position transverse to the felly rim and in alinement with the holes 10 of the demountable rim 6 The nuts 12 are then by means of the grooves 16 of the felly rim, and the screws 15 hold the bolts 1l from longitudinal movementduring the replacement of the demounta'ble rim.

I claim,

1. In a demountable rim for vehicles, the combination with a beveled felly rim having a series of spaced transverse grooves extending from one edge partially across its periphery and having radial recesses in said edge, communicating with said grooves, a series of straight bolts resting in vsaid grooves and provided with unilateral heads itting said recesses, a tire rim fitting the beveled 'surface of said felly rim andprovided with transverse holes extending partially through said tire rim and in alinement with the grooves in said felly rim, nuts carried -by said bolts, and means for holding said bolts from longitudinal movement.

2. In a demountable rim for vehicles, the combination with a beveled felly rim having a series of spaced transverse'grooves extending from one edge partially across its periphery and having radial recesses in said edge communicating with said grooves, of a tirerim fit-ting the beveled surface of' said felly rim and provided Withv transverse holes extending partially through the tire rim and in alinement with the grooves inthe elly combination with a beveled :telly rim havingl a series of spaced transverse grooves extending from one edge partially across its periphery, of a series of straight bolts resting -in said grooves, elongated unilateral heads on one end of said bolts, means for attaching said heads to the side of the felly rim, With the opposite ends of the bolts spaced from the elly rim, a tire rim held on said bolts having its inner surface fitting the beveled surface of the felly rim, and nuts carried on the free ends of said bolts and bearing against the edge of the tire rim.

RALPH L. MORGAN. Witnesses; V i

RUFUs B. FowLER, PENELOPE GQMBERBAGH. 

